Question: Who is the {arena} for {home venue} of {Toronto Maple Leafs}
Paraphrase: Who is the {field} for {domestic scene} of {Toronto Maple Leafs}
SPARQL (Wikidata):  select distinct ?obj where { wd:Q203384 wdt:P115 ?obj . ?obj wdt:P31 wd:Q641226 } 
Answer: Scotiabank Arena